2222242021 has 8 divisors (see below), whose sum is σ = 2312465760. Its totient is φ = 2133770352.

The previous prime is 2222242013. The next prime is 2222242027. The reversal of 2222242021 is 1202422222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2222242021 - 2³ = 2222242013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2222242021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222242027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435430 + ... + 440503.

It is an arithmetic number, because the mean of its divisors is an integer number (289058220).

Almost surely, 2^2222242021 is an apocalyptic number.

It is an amenable number.

2222242021 is a deficient number, since it is larger than the sum of its proper divisors (90223739).

2222242021 is an equidigital number, since it uses as much as digits as its factorization.

2222242021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876035.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 2222242021 is about 47140.6620763858. The cubic root of 2222242021 is about 1304.9597558578.

Adding to 2222242021 its reverse (1202422222), we get a palindrome (3424664243).

The spelling of 2222242021 in words is "two billion, two hundred twenty-two million, two hundred forty-two thousand, twenty-one".